Brian G. Marsden

Viited

  1. ↑ "Brian Marsden dies at 73; astronomer who tracked comets and asteroids". Los Angeles Times. Vaadatud 16. august 2020.
  2. ↑ "Brian G. Marsden (1937-2010)". Sky&Telescope. Vaadatud 16. august 2020.
allikas: https://et.wikipedia.org/wiki/Brian_G._Marsden